diff --git a/src/main/java/net/onrc/onos/core/topology/LinkImpl.java b/src/main/java/net/onrc/onos/core/topology/LinkImpl.java
index d95d4fd..4333e38 100644
--- a/src/main/java/net/onrc/onos/core/topology/LinkImpl.java
+++ b/src/main/java/net/onrc/onos/core/topology/LinkImpl.java
@@ -2,93 +2,94 @@
 
 /**
  * Link Object stored in In-memory Topology.
- *
+ * <p/>
  * TODO REMOVE following design memo: This object itself may hold the DBObject,
  * but this Object itself will not issue any read/write to the DataStore.
  */
 public class LinkImpl extends NetworkGraphObject implements Link {
-	protected Port srcPort;
-	protected Port dstPort;
+    protected Port srcPort;
+    protected Port dstPort;
 
-	protected static final Double DEFAULT_CAPACITY = Double.POSITIVE_INFINITY;
-	protected Double capacity = DEFAULT_CAPACITY;
+    protected static final Double DEFAULT_CAPACITY = Double.POSITIVE_INFINITY;
+    protected Double capacity = DEFAULT_CAPACITY;
 
-	protected static final int DEFAULT_COST = 1;
-	protected int cost = DEFAULT_COST;
+    protected static final int DEFAULT_COST = 1;
+    protected int cost = DEFAULT_COST;
 
-	/**
-	 * Constructor for when a link is read from the database and the Ports
-	 * already exist in the in-memory network graph.
-	 * @param graph
-	 * @param srcPort
-	 * @param dstPort
-	 */
-	public LinkImpl(NetworkGraph graph, Port srcPort, Port dstPort) {
-		super(graph);
-		this.srcPort = srcPort;
-		this.dstPort = dstPort;
-		setToPorts();
-	}
+    /**
+     * Constructor for when a link is read from the database and the Ports
+     * already exist in the in-memory network graph.
+     *
+     * @param graph
+     * @param srcPort
+     * @param dstPort
+     */
+    public LinkImpl(NetworkGraph graph, Port srcPort, Port dstPort) {
+        super(graph);
+        this.srcPort = srcPort;
+        this.dstPort = dstPort;
+        setToPorts();
+    }
 
-	@Override
-	public Switch getSrcSwitch() {
-		return srcPort.getSwitch();
-	}
+    @Override
+    public Switch getSrcSwitch() {
+        return srcPort.getSwitch();
+    }
 
-	@Override
-	public Port getSrcPort() {
-		return srcPort;
-	}
+    @Override
+    public Port getSrcPort() {
+        return srcPort;
+    }
 
-	@Override
-	public Switch getDstSwitch() {
-		return dstPort.getSwitch();
-	}
+    @Override
+    public Switch getDstSwitch() {
+        return dstPort.getSwitch();
+    }
 
-	@Override
-	public Port getDstPort() {
-		return dstPort;
-	}
+    @Override
+    public Port getDstPort() {
+        return dstPort;
+    }
 
-	protected void setToPorts() {
-		((PortImpl)srcPort).setOutgoingLink(this);
-		((PortImpl)dstPort).setIncomingLink(this);
-	}
+    protected void setToPorts() {
+        ((PortImpl) srcPort).setOutgoingLink(this);
+        ((PortImpl) dstPort).setIncomingLink(this);
+    }
 
-	protected void unsetFromPorts() {
-		((PortImpl)srcPort).setOutgoingLink(null);
-		((PortImpl)dstPort).setIncomingLink(null);
-	}
+    protected void unsetFromPorts() {
+        ((PortImpl) srcPort).setOutgoingLink(null);
+        ((PortImpl) dstPort).setIncomingLink(null);
+    }
 
-	@Override
-	public long getLastSeenTime() {
-		// TODO Auto-generated method stub
-		return 0;
-	}
+    @Override
+    public long getLastSeenTime() {
+        // TODO Auto-generated method stub
+        return 0;
+    }
 
-	@Override
-	public int getCost() {
-		return cost;
-	}
+    @Override
+    public int getCost() {
+        return cost;
+    }
 
-	public void setCost(int cost) {
-		this.cost = cost;
-	}
+    public void setCost(int cost) {
+        this.cost = cost;
+    }
 
-	@Override
-	public Double getCapacity() {
-		return capacity;
-	}
+    @Override
+    public Double getCapacity() {
+        return capacity;
+    }
 
-	public void setCapacity(Double capacity) {
-		this.capacity = capacity;
-	}
+    public void setCapacity(Double capacity) {
+        this.capacity = capacity;
+    }
 
-	@Override
-	public String toString() {
-		return String.format("%s --(cap:%f Mbps)--> %s",
-				getSrcPort().toString(),
-				getCapacity(),
-				getDstPort().toString());
-	}
+    @Override
+    public String toString() {
+        return String.format("%s --(cap:%f Mbps)--> %s",
+                getSrcPort().toString(),
+                getCapacity(),
+                getDstPort().toString());
+    }
 }